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H. P. BEMISS.

Wash Boiler. I

Patented Dec. .29, 1868.

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Letters Patent No. 85,358, dated December 29, 1888. I

IMPROVEMENT IN wASH-BOILERSI The Schedule referred to in these Letters Patent and making part of the lame.

To all whom it may concern.-

Be it known that I, H. P. BEMISS, of Milan, in the county of Erie, and State of Ohio, have invented'new and useful Improvements in Wash-Boilers; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to improvements-in that class of wash-boilers wherein currents of water are caused to flow from bottom to top, and vice verse.

lhOOllSlSl/S in an arrangement of the same, designed to be more efiectual in producing the said flow.

Figure 1 represents a longitudinal vertical section of a boiler, constructed according to'rny improvement and Figure 2 represents a plan view of the same.

Similar letters of reference indicate corresponding A represents the outer shell of the boiler, which is made in the usual or any other convenient form, and provided with a secondary bottom, B, having a door, 0, through it, for access to the space below, for cleaning and other purposes.

I). represent the dues for conducting the upward current, which I prefer to make of semicircular and tapered tubular form, and solder, or otherwise secure them to the inner wall of the shell of the boiler, as represented in the drawings, and provide them with small openings, E, near their upper ends, for the discharge of the hot water.

The lower ends of the tubes are also secured to the upper face of the secondary bottom, B, which is provided with openings coincident with'the tubes, and thereby form passages from the space below the said bottom.

F represent openings through the secondary bottom,

for the Water of reduced temperature to pass into the 'space below, to become reheated.

I have represented these passages in the four corners only of the boiler, but itis apparent that othersmay beformed between the tubes, if necessary.

By this arrangement, it will be perceived that a better action will be effected on the clothes, owing to the greater diffusion of the flow, which is made possible without interfering with the introduction or removal of the clothes.

But a more important feature is the better flow of water produced, which will be evident from the inspection of the arrangement of the bottom, D, passages 15, and the fines, when it will be seen that, as soon the water becomes heated inthe lower space, its only es- 7 cape is through the said tubes. Consequently, the circulation will at once set in, irrespective of the quantity of clothes in the boiler, whereas, in those heretofore constructed, the circulation is mainly dependent on the quantity of clothes in the boiler, and will be very feeble,

- unless the quantity is considerable, as the necessary conditions of the passages from the underspace to causethe circulation do not exist, when not filled, or nearly so, owing to the imperfect construction of the said boilers, the clothes being depended on to prevent the heated water from passing into the interior space.

I claim as. new, and desire to secure by Letters Patent The false bottom, B, rigidly aflixed to the base of the tubes D, above the bottom of the boiler, perforated at its corners F only, and provided with the central hinged door 0, as herein described, for the purpose specified.

.- H. P. BEMISS.

' Witnesses:

WM. H. TAYLOR, GEO. W. ORUHL- I 

